What is a sap-sucking insect?
Common sap-feeding insects include mealybugs, scale insects, aphids, true bugs and whiteflies. Leafhopper feeding damage to mint. The lighter-colored spots are typical of damage caused by mesophyll-feeding insects and mites. Not all plant-feeding insects with sucking mouth parts feed on sap. Classic examples of hemipteran sap-sucking pests include aphids (Aphidoidea), lerps or psyllids (Psyllidae), scale insects (Coccidae), mealy bugs (Pseudococcidae), whiteflies (Aleyrodidae), leafhoppers (Cicadellidae), planthoppers (Delphacidae), cicadas (Cicadidae), stink or shield bugs (Pentatomidae), tarnished plant .